@article{1102968285, author = {Holmes, John P.}, title = {Differentiable power-associative groupoids.}, journal = {Pacific J. Math.}, volume = {43}, number = {3}, year = {1972}, pages = { 391-394}, language = {en}, url = {http://dml.mathdoc.fr/item/1102968285} }
Holmes, John P. Differentiable power-associative groupoids.. Pacific J. Math., Tome 43 (1972) no. 3, pp. 391-394. http://gdmltest.u-ga.fr/item/1102968285/